Circle metal domes are the most widely used type of tactile switch. They are primarily used in mobile phones, MP3 players, MP4 players, digital cameras, handheld devices, AI smart products, and membrane switches.Round metal domes are made from two material types: stainless steel (SUS301 and SUS304) and phosphor bronze (single-side silver-plated). Thanks to their uniform shape, these domes are less affected by impact, providing a standard lifespan of one million actuations.
When PCB space is limited yet tactile feedback, rebound performance, and extended product life are required, circular metal domes are the ideal solution. In China, circular domes are commonly used in mobile phones.
ased on the presence of dimples, we categorize round metal domes into three series:
Without dimple: W-Series
With one central dimple: 1D-Series
With multiple dimples (typically three, four, or five): DN-Series
Through holes: The DK/K series of through holes come in different diameters.
Specifications of Round Metal Domes:
1.Material: SUS301, SUS304
2.Surface Finish: Nickel-plated, silver-plated, gold-plated
3.Diameter: 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 16mm
4.Common Actuation Forces: 60g, 80g, 100g, 160g, 180g, 200g, 250g, 280g, 300g, 350g, 400g
5.Contact Resistance: <10 Ω (general); <1 Ω (nickel/silver/gold-plated)
6.Operating and Storage Temperature: -55℃ to 125℃
Product Title
High-Cycle Round Metal Domes | For Mobile Phones, Smart Wearables & Membrane Switches | Ni/Ag/Au Plating | Multiple Forces & Sizes
Product Description
Round metal domes are among the most commonly used switch components in consumer electronics. Manufactured from high-quality stainless steel (SUS301/SUS304) or phosphor bronze (single-side silver-plated), they offer exceptional durability and reliable electrical performance. The uniform circular design ensures a long service life exceeding 1 million actuations, even under frequent use. These domes are widely used in mobile phones, MP3/MP4 players, digital cameras, handheld devices, AI smart products, and membrane switches.
Features:
High lifecycle design: standard lifespan of 1 million cycles, meeting rigorous industrial and consumer electronics requirements.
